(Mashable) -- Update: Google has already released an update to the Google+ app. For those that are having problems, check the App Store and download the latest version.

The official Google+ iPhone app is now available. The app is available as a free download [iTunes link] from the App Store.

Here's a list of the app's features, along with their descriptions.

-- Circles let you share the right things with just the right people.

-- Stream is where you can get updates from your circles or see what people are saying about things nearby.

-- Huddle is super-fast group messaging for everyone in your circles.

Buggy, but fun

First impressions of the app are that while useful, it's buggy. The app doesn't work on iOS 5 beta 3 -- so cutting-edge adopters, you're out of luck (for now) -- and is crashing in iOS 4 at regular occurrences for some users.